'UastHintedVisitorAdapter' hints problems

Reports missing or redundant hints in UastHintedVisitorAdapter creation.

UastHintedVisitorAdapter receives hints that allow to optimize UAST visitor execution by visiting only elements, which classes are specified in the hint list.

If the visitor implements, e.g., visitCallExpression method, but does not include UCallExpression in hints, then the method will not be executed.

If the visitor does not implement, e.g., visitCallExpression method, but does include UCallExpression in hints, then the inherited method will be unnecessarily executed.

return UastHintedVisitorAdapter.create(
  language,
  object : AbstractUastNonRecursiveVisitor() {
    override fun visitForExpression(node: UForExpression): Boolean {
      inspectLoopExpression()
      return true
    }

    override fun visitDoWhileExpression(node: UDoWhileExpression): Boolean { // unused at runtime
      inspectLoopExpression()
      return true
    }
    //...
  },
  arrayOf(UForExpression::class.java) // Bad: missing UDoWhileExpression::class.java
)

UastHintedVisitorAdapter.create(
  language,
  object : AbstractUastNonRecursiveVisitor() {
    override fun visitForExpression(node: UForExpression): Boolean {
      inspectLoopExpression()
      return true
    }
    //...
  },
  arrayOf(
    UForExpression::class.java,
    UDoWhileExpression::class.java // Bad: visiting UDoWhileExpression is not implemented
  )
)

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

UastHintedVisitorAdapterHints

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Plugin DevKit | Code

New in 2024.2

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection UastHintedVisitorAdapterHints

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

IntelliJ IDEA 2025.2

Inspection Details
By default bundled with:	IntelliJ IDEA 2025.2, Qodana for JVM 2025.2,

Last modified: 18 September 2025